Automatic copyholder for adding machines



July 9, 1929. F. LUDWIG 1.720.282

AUTOMATIC COPYHQLDER FOR ADDING IAGHINES Original Filed Oct. 4, 1924 3 Shoots-Shoot 1 ZZudw/g lA/VL'NTOR y 9, 1929. F. LUDWIG AUTOMATIC COPYHOLDER FOR ADDING IAOHINES 3 Sheets-Sheet 2 Original Filed Oct. 1924 5 E m M w 8 w a M 1 W 2,

July 9, 1929.

F. LUDWIG AUTOMATIC COPYH OLDER FOR ADDING IACHINES Original Filed Oct. 1924 3 Sheets-Sheet 3 Patented July 9, 1929.

UNITED I STATES PATENT OFFICE.

AUTOMATIC COPYHOLDER FOB ADDING MACHINES.

Original application filed October 4, 1924, Serial No. 741,684, and in Germany June 17, 1924. Divided and this application filed February 25, 1926, Serial No. 90,667. Renewed May 25, 1929.

This application is a divisional of my copending application Serial No. 741,684, filed October 4th, 1924.

While the application 741,684 described an apparatus, which employs a sheet-holder in form of a horizontal drum combined with an adding machine, a typewriting machine or the like, which horizontal drum is particularly applicable and intended for sheets where the items or numerals to be added are located on predetermined places for instance on the sides of the sheets, the present development of the invention has for its object an apparatus, which is especially useful and applicable in cases, where the figures to be added are contained on difierent places of the sheets and the latter must therefore be folded, in order to bring the figures in a systematical arrangement or in lines for the working of the adding machine.

With this object in view I employ a sheetholder in the form of a flat board, which is stationary and an indicating device in front of this board, which index is coupled with the adding machine or the like and adapted to be displaced in correspondence with the line distance of the numerals to be added.

In the accompanying drawings a preferred embodiment of my invention is illustrated, by way of example and like characters designate like parts throu bout the several views.

Figure 1 is a tota view of the apparatus inclusive of the frame work for the sheetholding or reading board;

Figure 2 illustrates the guiding means for the indicating means on a. larger scale;

Figure 3 is a side view of Figure 2;

Figure 4 is a front view of the parts transferring the movement to the indicator .at a larger scale;

Figure 5 is a side view of Fi ure 4;

Figure 6 is a plan view of etails of the motion transferring parts;

Figure 7 is a plan view of the sheet-holding board.

The shaft 40 has a spur wheel 42 (Fig. 1), which causes another spur wheel 41 to revolve, (Fig. 5). Wheel 41 is connected with the plate 69 (Figs. 1, 4, 5) by the short shaft 70. In Figure 1 spur Wheel 41 is not shown, while covered by spur wheel 42. Rigidly connected with wheels 41 and 42 are two cams 43" (Fig. 5) and 43' (Figs. 1, 4, 5), acting to reciprocate a rod'44 (Figs-1, 4, 5, 6) guided in slots 45, 46 by means of the roller 71.' (Figs. 5, 6).v

The reciprocating movement of the rod is transmitted to the lever 48 (Figs. 1, 4, 5, 6) by means of the pin 47 and slot 47, said lever oscillating about a vertical pin 49 (F igs. l, 6). The horizontally oscillating lever 48 actuates an arm 50 (Fig. 4), which is attached to a spindle or shaft 51 rigidly connected with a bar 52. The latter is fitted with zigzag projections or recesses according to the line 65 distance of the figures to be added.

Two arms 53 and 54 (Figs. 1, 2, 3) connected with the frame G serve to support the spindle 51 and the guiding tube 55 (Fig. 3). The'latter is split or slotted throughout the whole of its length and adapted to receive the guiding sleeve 56 (Fig. 3), provided with a stud 57 (Figs. 3, l) carrying the lever 58 of the indicating member 59.

The operation is as follows: 75

The oscillating lever 48 acts to oscillate the arm 50 and the movements of-the arm 50 are transmitted to the spindle 51 and to the bar 52 constructed and shaped to form a zigzag guide, whereby any tooth or recess that just has been engaged will act to release the guiding sleeve 56, so that the latter advances down to the next recess below and a new figure appears and will be visible in the indicator 59 carried by the lever 58. 85

In case that for an reasons the calculating machines R shall he employed alone, the reading board may be thrown out b means of a disengaging couplin provide in the driving mechanism on the s aft 40 and adapted to be operated by means of a lever 60, rod 61 (Fig. 1) and a pedal (not shown).

The disengaging coupling is a clutching device of any convenient construction; this coupling is not claimed in this application, and it seems not to be necessary to describe it more especially and show it by particular drawings.

The board 62 (Figs. 1 and 7 is attached to the frame G by means of two clamps67 and 100 68. Resilient gripping members 63 for holding the sheets or the like are provided at one side of the board, while on the other side two rulers 64 and 65 are pivotallyconnected to the board by means of suitable hinges 66. The said rulers are for the purpose of holding be understood by those to whom this specification is addressed that the parts will be of the proper size and relationship, and will be properly connected and supported according to the tenets of machine construction, the more so since my invention is a development of the display device shown and described in detail in the specification of my prior application 741,684.

What I claim is:

1. An automatic copy-holder for use in conjunction with an adding machine comprising a copy-holding board, a movable index member adapted to traverse the board,

and means to operate said index member,-

said means comprising a bar having continuous zigzag slots, said bar being disposed along one longitudinal side of said board, a slotted spindle disposed beneath the slots of said bar, means on said index member to engage the slot of said spindle, and means to oscillate said spindle and bar whereby the index member is I caused to traverse said board.

2. An automatic copy-holder for use in conjunction with an adding machine comprising a copy-holding board, rulers thereon for holding a sheet of paper, a movable index member adapted to traverse in said index member, and means to operate said index member, said means comprising a bar having continuous zigzag slots, said bar, being disposed along one longitudinal side of said board and cooperating with said pin, a slotted spindle disposed beneath the slots of said bar, the slot of said spindle engaging. said pin and means to oscillate said spindle and bar whereby the index member is caused to traverse said board.

3. Inautomatic copy-holders for use in conjunction with adding machines, means to move an index member across said copy holder, said means comprising a bar having zigzag slots, a slotted spindle beneath said bar, a pin engaging said slots and slotted spindle, said pin being operatively connected to the index member, and means to oscillate said bar and spindle.

In testimony whereof I aflix my signature.

FERDINAND LUDWIG.

the board, a pin 

